Pure Water Optical DO SensorEnhanced Stability and Reliability

High Accuracy

Highly Accurate DO Measurement Fast Response, Reduced Maintenance

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Pure Water Optical DO Sensor Fast Response, Reduced Maintenance

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The Pure Water Optical Dissolved Oxygen Sensor with Intelligent Sensor Management (ISM®) technology provides high accuracy, fast response, and increased stability in demanding low ppb-level applications.

Outstanding measurement performance with low detection limit, minimum drift, and short response time significantly improves oxygen monitoring. METTLER TOLEDO’s proprietary OptoCapTM sensing element provides very accurate oxygen determination and easy maintenance without electrolyte handling. Additionally, the OptoCap eliminates the need for polarization, making the measuring system readily available and reducing downtime.

Intelligent Sensor Management (ISM) simplifies sensor handling and provides diagnostic tools for predicting sensor maintenance before measurements are affected.

Features Overview• Very high accuracy• Fast response• Enhanced stability and reliability• Reduced maintenance and

downtime• No dissolved hydrogen

interference• No flow sensitivity

Typical Applications• Power plant cycle chemistry

monitoring• Generator stator cooling• Semiconductor ultrapure water• Pure water treatment systems

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Specifications

Operating range 0 – 5000 ppb

System accuracy ± 2% of reading or 2 ppb, whichever is greater

Response time at 25 °C (77 °F) (Air _ N2) 98% of final value in < 20 s

Sampling rate Adjustable between 1 and 60 seconds; Set to 10 seconds

Sample flow rate 50 – 800 ml / min

Temperature compensation Automatic

Measuring temperature range 10 – 50 °C (50 – 122 °F)

Environmental temperature range 0 – 121 °C (32 – 250 °F)

Operating pressure 0.2 – 12 bar (2.9 – 174 psi absolute)

Mechanical pressure resistance Maximum 12 bar (174 psi absolute)

Sample connections ¼” NPT

Wetted materials Stainless steel, silicone, EPDM O-Ring

Cable length Probe to M800 1 – 10 m (3 – 33 ft)

Components needed Optical DO probe, housing and cable

Sensor diameter 12 mm

Dimensions of Pure Water Optical DO Sensor

Visit for more informationwww.mt.com/thornton

Mettler-Toledo Thornton, Inc.36 Middlesex TurnpikeBedford, MA 01730 USATel +1-781-301-8600Fax +1-781-301-8701Toll Free +1-800-510-PURE (US & Canada Only)thornton.info@mt.com

Subject to technical changes©Mettler-Toledo Thornton, Inc.Printed in USA58 087 007 Rev B 09/13

Optical DO Sensor with ISMOrdering Information

Sensor Used with Thornton M800 Transmitter * Order No.

Pure Water ISM Optical DO Sensor 30 041 040

Required AccessoriesPure Water Stainless Steel Housing 58 084 018

Sensor Cable

2 m (6.6 ft) 52 300 3795 m (16.4 ft) 52 300 38010 m (32.8 ft) 52 300 38115 m (49.2 ft) 52 206 422

Spare Parts

OptoCap Replacement Kit 30 041 041

www.mt.com/opticalDO

* Power consumption is high; allowing only one ODO sensor on a 2-channel M800 or two ODO sensors on a 4-channel M800. The other channels can be used for other parameters such as pH or conductivity.

For new installations you need to order the sensor, the housing and a cable based on the length required by the customer.